Feat(Helm chart): Add env vars into pods (#4196)

* feat: update pod template

Signed-off-by: andreibe <95860450+andreibe24@users.noreply.github.com>

* fix: remove duplicate

Signed-off-by: andreibe <95860450+andreibe24@users.noreply.github.com>

* feat: update chart values.yaml

Signed-off-by: andreibe <95860450+andreibe24@users.noreply.github.com>

* feat: update README.md

Signed-off-by: andreibe <95860450+andreibe24@users.noreply.github.com>

* fix: change template behaviour on env

Signed-off-by: andreibe <andreibe24@users.noreply.github.com>

* chore: add helm ci tests

Signed-off-by: andreibe <andreibe24@users.noreply.github.com>

* fix: rerun go test

Signed-off-by: andreibe <andreibe24@users.noreply.github.com>

* test: add extra manifests

Signed-off-by: andreibe <andreibe24@users.noreply.github.com>

* fix: ci tests

Signed-off-by: andreibe <andreibe24@users.noreply.github.com>

---------

Signed-off-by: andreibe <95860450+andreibe24@users.noreply.github.com>
Signed-off-by: andreibe <andreibe24@users.noreply.github.com>
Co-authored-by: andreibe <andreibe24@users.noreply.github.com>
Co-authored-by: Tarun Pothulapati <tarun@dragonflydb.io>

contrib/charts/dragonfly/README.md

@@ -66,6 +66,8 @@ helm upgrade --install dragonfly oci://ghcr.io/dragonflydb/dragonfly/helm/dragon
 | replicaCount | int | `1` | Number of replicas to deploy |
 | resources.limits | object | `{}` | The resource limits for the containers |
 | resources.requests | object | `{}` | The requested resources for the containers |
+| env | list | `[]` | Extra environment variables |
+| envFrom | list | `[]` | Extra environment variables from K8s objects |
 | securityContext | object | `{}` | Set securityContext for containers |
 | service.annotations | object | `{}` | Extra annotations for the service |
 | service.lablels | object | `{}` | Extra labels for the service |

contrib/charts/dragonfly/ci/extraenv-and-passwordSecret-values.golden.yaml

@@ -0,0 +1,136 @@
+---
+# Source: dragonfly/templates/serviceaccount.yaml
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: test-dragonfly
+  namespace: default
+  labels:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/version: "v1.25.4"
+    app.kubernetes.io/managed-by: Helm
+---
+# Source: dragonfly/templates/extra-manifests.yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: dfly-password
+stringData:
+  password: foobar
+---
+# Source: dragonfly/templates/extra-manifests.yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: my-secret
+stringData:
+  password: password
+  username: username
+type: Opaque
+---
+# Source: dragonfly/templates/extra-manifests.yaml
+apiVersion: v1
+data:
+  configKey1: configValue1
+  configKey2: configValue2
+kind: ConfigMap
+metadata:
+  name: my-configmap
+---
+# Source: dragonfly/templates/service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: test-dragonfly
+  namespace: default
+  labels:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/version: "v1.25.4"
+    app.kubernetes.io/managed-by: Helm
+spec:
+  type: ClusterIP
+  ports:
+    - port: 6379
+      targetPort: dragonfly
+      protocol: TCP
+      name: dragonfly
+  selector:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+---
+# Source: dragonfly/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-dragonfly
+  namespace: default
+  labels:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/version: "v1.25.4"
+    app.kubernetes.io/managed-by: Helm
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: dragonfly
+      app.kubernetes.io/instance: test
+  template:
+    metadata:
+      annotations:
+      labels:
+        app.kubernetes.io/name: dragonfly
+        app.kubernetes.io/instance: test
+    spec:
+      serviceAccountName: test-dragonfly
+      containers:
+        - name: dragonfly
+          image: "docker.dragonflydb.io/dragonflydb/dragonfly:v1.25.4"
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: dragonfly
+              containerPort: 6379
+              protocol: TCP
+          livenessProbe:
+            exec:
+              command:
+              - /bin/sh
+              - /usr/local/bin/healthcheck.sh
+            failureThreshold: 3
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 5
+          readinessProbe:
+            exec:
+              command:
+              - /bin/sh
+              - /usr/local/bin/healthcheck.sh
+            failureThreshold: 3
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 5
+          args:
+            - "--alsologtostderr"
+          resources:
+            limits: {}
+            requests: {}
+          
+          env:
+            - name: DFLY_requirepass
+              valueFrom:
+                secretKeyRef:
+                  name: dfly-password
+                  key: password
+            - name: ENV_VAR43
+              value: value1
+            - name: ENV_VAR323
+              value: value2
+          envFrom:
+            - configMapRef:
+                name: my-configmap
+            - secretRef:
+                name: my-secret

contrib/charts/dragonfly/ci/extraenv-and-passwordSecret-values.yaml

@@ -0,0 +1,40 @@
+extraObjects:
+- apiVersion: v1
+  kind: Secret
+  metadata:
+    name: dfly-password
+  stringData:
+    password: foobar
+- apiVersion: v1
+  kind: ConfigMap
+  metadata:
+    name: my-configmap
+  data:
+    configKey1: configValue1
+    configKey2: configValue2
+- apiVersion: v1
+  kind: Secret
+  metadata:
+    name: my-secret
+  type: Opaque
+  stringData:
+    username: username
+    password: password
+
+env:
+  - name: ENV_VAR43
+    value: value1
+  - name: ENV_VAR323
+    value: value2
+
+envFrom:
+  - configMapRef:
+      name: my-configmap
+  - secretRef:
+      name: my-secret
+
+passwordFromSecret:
+  enable: true
+  existingSecret:
+    name: dfly-password
+    key: password

contrib/charts/dragonfly/ci/extraenv-values.golden.yaml

@@ -0,0 +1,123 @@
+---
+# Source: dragonfly/templates/serviceaccount.yaml
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: test-dragonfly
+  namespace: default
+  labels:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/version: "v1.25.4"
+    app.kubernetes.io/managed-by: Helm
+---
+# Source: dragonfly/templates/extra-manifests.yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: my-secret
+stringData:
+  password: password
+  username: username
+type: Opaque
+---
+# Source: dragonfly/templates/extra-manifests.yaml
+apiVersion: v1
+data:
+  configKey1: configValue1
+  configKey2: configValue2
+kind: ConfigMap
+metadata:
+  name: my-configmap
+---
+# Source: dragonfly/templates/service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: test-dragonfly
+  namespace: default
+  labels:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/version: "v1.25.4"
+    app.kubernetes.io/managed-by: Helm
+spec:
+  type: ClusterIP
+  ports:
+    - port: 6379
+      targetPort: dragonfly
+      protocol: TCP
+      name: dragonfly
+  selector:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+---
+# Source: dragonfly/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-dragonfly
+  namespace: default
+  labels:
+    app.kubernetes.io/name: dragonfly
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/version: "v1.25.4"
+    app.kubernetes.io/managed-by: Helm
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: dragonfly
+      app.kubernetes.io/instance: test
+  template:
+    metadata:
+      annotations:
+      labels:
+        app.kubernetes.io/name: dragonfly
+        app.kubernetes.io/instance: test
+    spec:
+      serviceAccountName: test-dragonfly
+      containers:
+        - name: dragonfly
+          image: "docker.dragonflydb.io/dragonflydb/dragonfly:v1.25.4"
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: dragonfly
+              containerPort: 6379
+              protocol: TCP
+          livenessProbe:
+            exec:
+              command:
+              - /bin/sh
+              - /usr/local/bin/healthcheck.sh
+            failureThreshold: 3
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 5
+          readinessProbe:
+            exec:
+              command:
+              - /bin/sh
+              - /usr/local/bin/healthcheck.sh
+            failureThreshold: 3
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 5
+          args:
+            - "--alsologtostderr"
+          resources:
+            limits: {}
+            requests: {}
+          
+          env:
+            - name: ENV_VAR43
+              value: value1
+            - name: ENV_VAR323
+              value: value2
+          envFrom:
+            - configMapRef:
+                name: my-configmap
+            - secretRef:
+                name: my-secret

contrib/charts/dragonfly/ci/extraenv-values.yaml

@@ -0,0 +1,28 @@
+extraObjects:
+- apiVersion: v1
+  kind: ConfigMap
+  metadata:
+    name: my-configmap
+  data:
+    configKey1: configValue1
+    configKey2: configValue2
+- apiVersion: v1
+  kind: Secret
+  metadata:
+    name: my-secret
+  type: Opaque
+  stringData:
+    username: username
+    password: password
+
+env:
+  - name: ENV_VAR43
+    value: value1
+  - name: ENV_VAR323
+    value: value2
+
+envFrom:
+  - configMapRef:
+      name: my-configmap
+  - secretRef:
+      name: my-secret

contrib/charts/dragonfly/templates/_pod.tpl

@@ -96,6 +96,8 @@ containers:
       {{- toYaml . | trim | nindent 6 }}
     {{- end }}
     {{- include "dragonfly.volumemounts" . | trim | nindent 4 }}
+    {{- if or .Values.passwordFromSecret.enable .Values.env }}
+    env:
     {{- if .Values.passwordFromSecret.enable }}
     {{- $appVersion := .Chart.AppVersion | trimPrefix "v" }}
     {{- $imageTag := .Values.image.tag | trimPrefix "v" }}
@@ -103,7 +105,6 @@ containers:
     {{- if and $imageTag (ne $imageTag "") }}
       {{- $effectiveVersion = $imageTag }}
     {{- end }}
-    env:
     {{- if semverCompare ">=1.14.0" $effectiveVersion }}
       - name: DFLY_requirepass
     {{- else }}
@@ -114,6 +115,14 @@ containers:
             name: {{ tpl .Values.passwordFromSecret.existingSecret.name $ }}
             key: {{ .Values.passwordFromSecret.existingSecret.key }}
     {{- end }}
+    {{- with .Values.env }}
+      {{- toYaml . | trim | nindent 6 }}
+    {{- end }}
+    {{- end }}
+    {{- with .Values.envFrom }}
+    envFrom:
+      {{- toYaml . | trim | nindent 6 }}
+    {{- end }}
 
 {{- if or (.Values.tls.enabled) (.Values.extraVolumes) }}
 volumes:

contrib/charts/dragonfly/values.yaml

@@ -201,6 +201,12 @@ resources:
   #   cpu: 100m
   #   memory: 128Mi
 
+# -- extra environment variables
+env: []
+
+# -- extra environment variables from K8s objects
+envFrom: []
+
 # -- Priority class name for pod assignment
 priorityClassName: ""